| Business | Phone |
| City Shop Mcr 500 Alexander St, Three Rivers 78071 | (361) 786-3807 |
| F D Meeting Room Three Rivers 78071 | (361) 786-3687 |
| Water Plant Highway 72 W, Three Rivers 78071 | (361) 786-3436 |
| Three Rivers Animal Control 198 County Rd 400, Three Rivers 78071 | (361) 786-3511 |
| Three Rivers Gas Dept 105 N Harborth Ave, Three Rivers 78071 | (361) 786-4175 |
| Three Rivers License & Weights Three Rivers 78071 | (361) 786-3978 |